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from tests.dialects.test_dialect import Validator
class TestTeradata(Validator):
dialect = "teradata"
def test_teradata(self):
self.validate_identity("TO_NUMBER(expr, fmt, nlsparam)")
self.validate_identity("SELECT TOP 10 * FROM tbl")
self.validate_identity("SELECT * FROM tbl SAMPLE 5")
self.validate_identity(
"SELECT * FROM tbl SAMPLE 0.33, .25, .1",
"SELECT * FROM tbl SAMPLE 0.33, 0.25, 0.1",
)
self.validate_all(
"DATABASE tduser",
read={
"databricks": "USE tduser",
},
write={
"databricks": "USE tduser",
"teradata": "DATABASE tduser",
},
)
def test_translate(self):
self.validate_all(
"TRANSLATE(x USING LATIN_TO_UNICODE)",
write={
"teradata": "CAST(x AS CHAR CHARACTER SET UNICODE)",
},
)
self.validate_identity("CAST(x AS CHAR CHARACTER SET UNICODE)")
def test_update(self):
self.validate_all(
"UPDATE A FROM schema.tableA AS A, (SELECT col1 FROM schema.tableA GROUP BY col1) AS B SET col2 = '' WHERE A.col1 = B.col1",
write={
"teradata": "UPDATE A FROM schema.tableA AS A, (SELECT col1 FROM schema.tableA GROUP BY col1) AS B SET col2 = '' WHERE A.col1 = B.col1",
"mysql": "UPDATE A SET col2 = '' FROM `schema`.tableA AS A, (SELECT col1 FROM `schema`.tableA GROUP BY col1) AS B WHERE A.col1 = B.col1",
},
)
def test_statistics(self):
self.validate_identity("COLLECT STATISTICS ON tbl INDEX(col)", check_command_warning=True)
self.validate_identity("COLLECT STATS ON tbl COLUMNS(col)", check_command_warning=True)
self.validate_identity("COLLECT STATS COLUMNS(col) ON tbl", check_command_warning=True)
self.validate_identity("HELP STATISTICS personel.employee", check_command_warning=True)
self.validate_identity(
"HELP STATISTICS personnel.employee FROM my_qcd", check_command_warning=True
)
def test_create(self):
self.validate_identity(
"REPLACE VIEW view_b (COL1, COL2) AS LOCKING ROW FOR ACCESS SELECT COL1, COL2 FROM table_b",
"CREATE OR REPLACE VIEW view_b (COL1, COL2) AS LOCKING ROW FOR ACCESS SELECT COL1, COL2 FROM table_b",
)
self.validate_identity(
"REPLACE VIEW view_b (COL1, COL2) AS LOCKING ROW FOR ACCESS SELECT COL1, COL2 FROM table_b",
"CREATE OR REPLACE VIEW view_b (COL1, COL2) AS LOCKING ROW FOR ACCESS SELECT COL1, COL2 FROM table_b",
)
self.validate_identity("CREATE TABLE x (y INT) PRIMARY INDEX (y) PARTITION BY y INDEX (y)")
self.validate_identity("CREATE TABLE x (y INT) PARTITION BY y INDEX (y)")
self.validate_identity(
"CREATE MULTISET VOLATILE TABLE my_table (id INT) PRIMARY INDEX (id) ON COMMIT PRESERVE ROWS"
)
self.validate_identity(
"CREATE SET VOLATILE TABLE my_table (id INT) PRIMARY INDEX (id) ON COMMIT DELETE ROWS"
)
self.validate_identity(
"CREATE TABLE a (b INT) PRIMARY INDEX (y) PARTITION BY RANGE_N(b BETWEEN 'a', 'b' AND 'c' EACH '1')"
)
self.validate_identity(
"CREATE TABLE a (b INT) PARTITION BY RANGE_N(b BETWEEN 0, 1 AND 2 EACH 1)"
)
self.validate_identity(
"CREATE TABLE a (b INT) PARTITION BY RANGE_N(b BETWEEN *, 1 AND * EACH b) INDEX (a)"
)
self.validate_identity(
"CREATE TABLE a, NO FALLBACK PROTECTION, NO LOG, NO JOURNAL, CHECKSUM=ON, NO MERGEBLOCKRATIO, BLOCKCOMPRESSION=ALWAYS (a INT)"
)
self.validate_identity(
"CREATE TABLE a, NO FALLBACK PROTECTION, NO LOG, NO JOURNAL, CHECKSUM=ON, NO MERGEBLOCKRATIO, BLOCKCOMPRESSION=ALWAYS (a INT)"
)
self.validate_identity(
"CREATE TABLE a, WITH JOURNAL TABLE=x.y.z, CHECKSUM=OFF, MERGEBLOCKRATIO=1, DATABLOCKSIZE=10 KBYTES (a INT)"
)
self.validate_identity(
"CREATE TABLE a, BEFORE JOURNAL, AFTER JOURNAL, FREESPACE=1, DEFAULT DATABLOCKSIZE, BLOCKCOMPRESSION=DEFAULT (a INT)"
)
self.validate_identity(
"CREATE TABLE a, DUAL JOURNAL, DUAL AFTER JOURNAL, MERGEBLOCKRATIO=1 PERCENT, DATABLOCKSIZE=10 KILOBYTES (a INT)"
)
self.validate_identity(
"CREATE TABLE a, DUAL BEFORE JOURNAL, LOCAL AFTER JOURNAL, MAXIMUM DATABLOCKSIZE, BLOCKCOMPRESSION=AUTOTEMP(c1 INT) (a INT)"
)
self.validate_identity(
"CREATE VOLATILE MULTISET TABLE a, NOT LOCAL AFTER JOURNAL, FREESPACE=1 PERCENT, DATABLOCKSIZE=10 BYTES, WITH NO CONCURRENT ISOLATED LOADING FOR ALL (a INT)"
)
self.validate_identity(
"CREATE VOLATILE SET TABLE example1 AS (SELECT col1, col2, col3 FROM table1) WITH DATA PRIMARY INDEX (col1) ON COMMIT PRESERVE ROWS"
)
self.validate_identity(
"CREATE SET GLOBAL TEMPORARY TABLE a, NO BEFORE JOURNAL, NO AFTER JOURNAL, MINIMUM DATABLOCKSIZE, BLOCKCOMPRESSION=NEVER (a INT)"
)
self.validate_all(
"""
CREATE SET TABLE test, NO FALLBACK, NO BEFORE JOURNAL, NO AFTER JOURNAL,
CHECKSUM = DEFAULT (x INT, y INT, z CHAR(30), a INT, b DATE, e INT)
PRIMARY INDEX (a),
INDEX(x, y)
""",
write={
"teradata": "CREATE SET TABLE test, NO FALLBACK, NO BEFORE JOURNAL, NO AFTER JOURNAL, CHECKSUM=DEFAULT (x INT, y INT, z CHAR(30), a INT, b DATE, e INT) PRIMARY INDEX (a) INDEX (x, y)",
},
)
self.validate_all(
"REPLACE VIEW a AS (SELECT b FROM c)",
write={"teradata": "CREATE OR REPLACE VIEW a AS (SELECT b FROM c)"},
)
self.validate_all(
"CREATE VOLATILE TABLE a",
write={
"teradata": "CREATE VOLATILE TABLE a",
"bigquery": "CREATE TABLE a",
"clickhouse": "CREATE TABLE a",
"databricks": "CREATE TABLE a",
"drill": "CREATE TABLE a",
"duckdb": "CREATE TABLE a",
"hive": "CREATE TABLE a",
"mysql": "CREATE TABLE a",
"oracle": "CREATE TABLE a",
"postgres": "CREATE TABLE a",
"presto": "CREATE TABLE a",
"redshift": "CREATE TABLE a",
"snowflake": "CREATE TABLE a",
"spark": "CREATE TABLE a",
"sqlite": "CREATE TABLE a",
"starrocks": "CREATE TABLE a",
"tableau": "CREATE TABLE a",
"trino": "CREATE TABLE a",
"tsql": "CREATE TABLE a",
},
)
def test_insert(self):
self.validate_all(
"INS INTO x SELECT * FROM y", write={"teradata": "INSERT INTO x SELECT * FROM y"}
)
def test_mod(self):
self.validate_all("a MOD b", write={"teradata": "a MOD b", "mysql": "a % b"})
def test_power(self):
self.validate_all("a ** b", write={"teradata": "a ** b", "mysql": "POWER(a, b)"})
def test_abbrev(self):
self.validate_identity("a LT b", "a < b")
self.validate_identity("a LE b", "a <= b")
self.validate_identity("a GT b", "a > b")
self.validate_identity("a GE b", "a >= b")
self.validate_identity("a ^= b", "a <> b")
self.validate_identity("a NE b", "a <> b")
self.validate_identity("a NOT= b", "a <> b")
self.validate_identity("a EQ b", "a = b")
self.validate_identity("SEL a FROM b", "SELECT a FROM b")
self.validate_identity(
"SELECT col1, col2 FROM dbc.table1 WHERE col1 EQ 'value1' MINUS SELECT col1, col2 FROM dbc.table2",
"SELECT col1, col2 FROM dbc.table1 WHERE col1 = 'value1' EXCEPT SELECT col1, col2 FROM dbc.table2",
)
self.validate_identity("UPD a SET b = 1", "UPDATE a SET b = 1")
self.validate_identity("DEL FROM a", "DELETE FROM a")
def test_datatype(self):
self.validate_all(
"CREATE TABLE z (a ST_GEOMETRY(1))",
write={
"teradata": "CREATE TABLE z (a ST_GEOMETRY(1))",
"redshift": "CREATE TABLE z (a GEOMETRY(1))",
},
)
self.validate_identity("CREATE TABLE z (a SYSUDTLIB.INT)")
def test_cast(self):
self.validate_all(
"CAST('1992-01' AS DATE FORMAT 'YYYY-DD')",
read={
"bigquery": "CAST('1992-01' AS DATE FORMAT 'YYYY-DD')",
},
write={
"teradata": "CAST('1992-01' AS DATE FORMAT 'YYYY-DD')",
"bigquery": "PARSE_DATE('%Y-%d', '1992-01')",
"databricks": "TO_DATE('1992-01', 'yyyy-dd')",
"mysql": "STR_TO_DATE('1992-01', '%Y-%d')",
"spark": "TO_DATE('1992-01', 'yyyy-dd')",
"": "STR_TO_DATE('1992-01', '%Y-%d')",
},
)
self.validate_identity("CAST('1992-01' AS FORMAT 'YYYY-DD')")
self.validate_all(
"TRYCAST('-2.5' AS DECIMAL(5, 2))",
read={
"snowflake": "TRY_CAST('-2.5' AS DECIMAL(5, 2))",
},
write={
"snowflake": "TRY_CAST('-2.5' AS DECIMAL(5, 2))",
"teradata": "TRYCAST('-2.5' AS DECIMAL(5, 2))",
},
)
def test_time(self):
self.validate_all(
"CURRENT_TIMESTAMP",
read={
"teradata": "CURRENT_TIMESTAMP",
"snowflake": "CURRENT_TIMESTAMP()",
},
)
self.validate_all(
"SELECT '2023-01-01' + INTERVAL '5' YEAR",
read={
"teradata": "SELECT '2023-01-01' + INTERVAL '5' YEAR",
"snowflake": "SELECT DATEADD(YEAR, 5, '2023-01-01')",
},
)
self.validate_all(
"SELECT '2023-01-01' - INTERVAL '5' YEAR",
read={
"teradata": "SELECT '2023-01-01' - INTERVAL '5' YEAR",
"snowflake": "SELECT DATEADD(YEAR, -5, '2023-01-01')",
},
)
self.validate_all(
"SELECT '2023-01-01' - INTERVAL '5' YEAR",
read={
"teradata": "SELECT '2023-01-01' - INTERVAL '5' YEAR",
"sqlite": "SELECT DATE_SUB('2023-01-01', 5, YEAR)",
},
)
self.validate_all(
"SELECT '2023-01-01' + INTERVAL '5' YEAR",
read={
"teradata": "SELECT '2023-01-01' + INTERVAL '5' YEAR",
"sqlite": "SELECT DATE_SUB('2023-01-01', -5, YEAR)",
},
)
self.validate_all(
"SELECT (90 * INTERVAL '1' DAY)",
read={
"teradata": "SELECT (90 * INTERVAL '1' DAY)",
"snowflake": "SELECT INTERVAL '1' QUARTER",
},
)
self.validate_all(
"SELECT (7 * INTERVAL '1' DAY)",
read={
"teradata": "SELECT (7 * INTERVAL '1' DAY)",
"snowflake": "SELECT INTERVAL '1' WEEK",
},
)
self.validate_all(
"SELECT '2023-01-01' + (90 * INTERVAL '5' DAY)",
read={
"teradata": "SELECT '2023-01-01' + (90 * INTERVAL '5' DAY)",
"snowflake": "SELECT DATEADD(QUARTER, 5, '2023-01-01')",
},
)
self.validate_all(
"SELECT '2023-01-01' + (7 * INTERVAL '5' DAY)",
read={
"teradata": "SELECT '2023-01-01' + (7 * INTERVAL '5' DAY)",
"snowflake": "SELECT DATEADD(WEEK, 5, '2023-01-01')",
},
)
self.validate_all(
"CAST(TO_CHAR(x, 'Q') AS INT)",
read={
"teradata": "CAST(TO_CHAR(x, 'Q') AS INT)",
"snowflake": "DATE_PART(QUARTER, x)",
"bigquery": "EXTRACT(QUARTER FROM x)",
},
)
self.validate_all(
"EXTRACT(MONTH FROM x)",
read={
"teradata": "EXTRACT(MONTH FROM x)",
"snowflake": "DATE_PART(MONTH, x)",
"bigquery": "EXTRACT(MONTH FROM x)",
},
)
self.validate_all(
"CAST(TO_CHAR(x, 'Q') AS INT)",
read={
"snowflake": "quarter(x)",
"teradata": "CAST(TO_CHAR(x, 'Q') AS INT)",
},
)
|
